Question: Exercise Create the relational algebra and the expression tree for: Using the relations Bars(name, address) and Sells(bar, beer, price), find the names of all the

Exercise Create the relational algebra and the expression tree for: "Using

Exercise Create the relational algebra and the expression tree for: "Using the relations Bars(name, address) and Sells(bar, beer, price), find the names of all the bars that are either on Main Street or sell Bud for less than $3

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